This looks beautiful and I can see this becoming indispensable quickly.
I wish you guys did a better job of explaining what your app will do with write permissions to Facebook. I played around with it a bit, and it doesn't look like things I bookmark get posted to my News Feed or anything like that, but I don't know for sure.
It would be nice if this was super clear when signing up.
Soo... what exactly happens with write permissions? :)